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公开(公告)号：US11451377B2
公开(公告)日：2022-09-20
申请号：US16334128
申请日：2017-09-27
发明人： Hiroki Yamazaki , Mikio Kataoka
IPC分类号： H04W4/44 , H04L9/08 , H04L9/40 , H04W12/03 , H04W12/041 , H04W12/0433 , H04W12/0471
摘要： When updating a key to guarantee security, updating the key during decryption of update data causes an ECU to stop functioning due to a decryption failure. Therefore, an in-vehicle gateway or a key management device of the present invention includes: an update data acquisition unit that receives, from outside a vehicle, update data encrypted with a predetermined key; a key acquisition unit that receives a key from outside the vehicle; a key storage unit in which the key received by the key acquisition unit is stored; and a decryption unit that decrypts the update data acquired by the update data acquisition unit based on the key stored in the storage unit, in which the update data acquisition unit transmits a key acquisition request signal after completion of decryption of the update data by the decryption unit.
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公开(公告)号：US11362859B2
公开(公告)日：2022-06-14
申请号：US17268815
申请日：2019-07-26
摘要： The present invention provides an in-vehicle communication device and an in-vehicle system that can establish communication, in a short time, between applications corresponding to the same communication protocol between in-vehicle processing devices connected to communication buses having different communication protocols. In the present invention, when the first communication controller 33 has received a specific message from the first in-vehicle processing device 102 connected to the first communication bus 101, the in-vehicle communication device 1 transmits a communication protocol switching command from the second communication controller 3 to the second in-vehicle processing device 202 connected to the second communication bus 201 to switch a communication protocol setting of the second communication controller to the same communication protocol setting as that of the first communication bus.
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公开(公告)号：US11360762B2
公开(公告)日：2022-06-14
申请号：US16755230
申请日：2018-10-05
发明人： Hidetoshi Teraoka , Hiroki Yamazaki , Masashi Yano
摘要： An information update apparatus that updates first information stored in a vehicle control apparatus to second information. The information update apparatus includes: a download control unit that receives an update package including an update body that is a difference between the first information and the second information or the second information, procedure information including a procedure of updating the first information to the second information using the update body, and an activation condition that is a condition of starting updating the first information to the second information; and an event management unit that acquires a state of a vehicle on which the vehicle control apparatus and the information update apparatus are mounted, and causes an update execution unit to execute the update based on the procedure information when the state of the vehicle matches the activation condition.
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